import type { Router } from "vue-router";
import { ElMessage } from "element-plus";
import NProgress from "nprogress";
import "nprogress/nprogress.css";
import { getToken } from "@/utils/auth";
import { isHttp } from "@/utils/validate";
import { isRelogin } from "@/utils/request";
import useUserStore from "@/store/modules/user";
import useSettingsStore from "@/store/modules/settings";
import usePermissionStore from "@/store/modules/permission";

NProgress.configure({ showSpinner: false });

const whiteList = ["/login", "/register"];

export default class RouterMaster {
  constructor(public router: Router) {
    router.beforeEach((to, from, next) => {
      NProgress.start();
      if (getToken()) {
        to.meta.title && useSettingsStore().setTitle(to.meta.title);
        /* has token*/
        if (to.path === "/login") {
          next({ path: "/" });
          NProgress.done();
        } else {
          if (useUserStore().roles.length === 0) {
            isRelogin.show = true;
            // 判断当前用户是否已拉取完user_info信息
            useUserStore()
              .getInfo()
              .then(() => {
                isRelogin.show = false;
                usePermissionStore()
                  .generateRoutes()
                  .then((accessRoutes) => {
                    // 根据roles权限生成可访问的路由表
                    accessRoutes.forEach((route) => {
                      if (!isHttp(route.path)) {
                        router.addRoute(route); // 动态添加可访问路由表
                      }
                    });
                    next({ ...to, replace: true }); // hack方法 确保addRoutes已完成
                  });
              })
              .catch((err) => {
                useUserStore()
                  .logOut()
                  .then(() => {
                    ElMessage.error(err);
                    next({ path: "/" });
                  });
              });
          } else {
            next();
          }
        }
      } else {
        // 没有token
        if (whiteList.indexOf(to.path) !== -1) {
          // 在免登录白名单，直接进入
          next();
        } else {
          next(`/login?redirect=${to.fullPath}`); // 否则全部重定向到登录页
          NProgress.done();
        }
      }
    });

    router.afterEach(() => {
      NProgress.done();
    });
  }
}
